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| author | YunQiang Su <yunqiang.su@cipunited.com> | 2023-07-28 06:00:37 +0100 |
|---|---|---|
| committer | Maciej W. Rozycki <macro@orcam.me.uk> | 2023-07-28 06:00:37 +0100 |
| commit | 29c108c9610640439daa5244a573348b7c47d994 (patch) | |
| tree | 5065cd49cff1683cb17c80c66de8923a4b6eb13e /ld/configure.tgt | |
| parent | 316be2b229f5bd07ebef48fd1d7b8cb103e4d815 (diff) | |
| download | gdb-29c108c9610640439daa5244a573348b7c47d994.zip gdb-29c108c9610640439daa5244a573348b7c47d994.tar.gz gdb-29c108c9610640439daa5244a573348b7c47d994.tar.bz2 | |
MIPS: Support `-gnuabi64' target triplet suffix for 64-bit Linux targets
Make the n64 ABI the default for 64-bit Linux targets specified with
`-gnuabi64' suffix included in the target triplet, for configurations
such as the Debian mips64el and mips64r6el ports. Adjust testsuite
configuration accordingly.
There are the following regressions with the new target triplet:
mips64-linux-gnuabi64 +FAIL: readelf -S bintest
mips64-linux-gnuabi64 +FAIL: MIPS reloc estimation 1
mips64el-linux-gnuabi64 +FAIL: readelf -S bintest
mips64el-linux-gnuabi64 +FAIL: MIPS reloc estimation 1
The `readelf' issue comes from a difference in section headers produced
that the `binutils/testsuite/binutils-all/readelf.s-64' pattern template
does not match. While there has been a precedent it does not appear to
me that there is a clear advantage from adding more and more variations
to the template rather than forking the existing template into multiple
ones for a more exact match. So this is best deferred to a separate
discussion.
The MIPS reloc estimation issue is an actual bug in `objdump', which
discards a number of trailing entries from output here for n64 composed
relocations:
DYNAMIC RELOCATION RECORDS
OFFSET TYPE VALUE
0000000000000000 R_MIPS_NONE *ABS*
0000000000000000 R_MIPS_NONE *ABS*
and consequently `ld/testsuite/ld-mips-elf/reloc-estimate-1.d' does not
match even though ELF output produced is correct according to `readelf':
Relocation section '.rel.dyn' at offset 0x10400 contains 2 entries:
Offset Info Type Sym. Value Sym. Name
000000000000 000000000000 R_MIPS_NONE
Type2: R_MIPS_NONE
Type3: R_MIPS_NONE
000000010000 000300001203 R_MIPS_REL32 0000000000010010 foo@@V2
Type2: R_MIPS_64
Type3: R_MIPS_NONE
As a genuine bug this has to be handled separately.
Co-Authored by: Maciej W. Rozycki <macro@orcam.me.uk>
bfd/
* config.bfd: Add `mips64*el-*-linux*-gnuabi64' and
`mips64*-*-linux*-gnuabi64' targets.
binutils/
* testsuite/binutils-all/mips/mips.exp: Handle `*-*-*-gnuabi64'
targets.
* testsuite/binutils-all/objcopy.exp: Handle
`mips64*-*-*-gnuabi64' targets.
* testsuite/binutils-all/remove-relocs-01.d: Likewise.
* testsuite/binutils-all/remove-relocs-04.d: Likewise.
* testsuite/binutils-all/remove-relocs-05.d: Likewise.
* testsuite/binutils-all/remove-relocs-06.d: Likewise.
gas/
* configure.ac: Handle `mips64*-linux-gnuabi64' targets.
* configure: Regenerate.
* testsuite/gas/mips/compact-eh-eb-7.d: Handle
`mips64*-*-*-gnuabi64' targets.
* testsuite/gas/mips/compact-eh-el-7.d: Likewise.
ld/
* configure.tgt: Add `mips64*el-*-linux-gnuabi64' and
`mips64*-*-linux-gnuabi64' targets.
* testsuite/ld-undefined/undefined.exp: Handle
`mips64*-*-*-gnuabi64' targets.
* testsuite/ld-mips-elf/attr-gnu-4-10.d: Likewise.
* testsuite/ld-mips-elf/compact-eh6.d: Likewise.
* testsuite/ld-mips-elf/mips-elf.exp: Handle `*-*-*-gnuabi64'
targets.
Diffstat (limited to 'ld/configure.tgt')
| -rw-r--r-- | ld/configure.tgt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/ld/configure.tgt b/ld/configure.tgt index 34c9d67..c62b958 100644 --- a/ld/configure.tgt +++ b/ld/configure.tgt @@ -580,10 +580,20 @@ mips*-*-vxworks*) targ_emul=elf32ebmipvxworks ;; mips*-*-windiss) targ_emul=elf32mipswindiss ;; +mips64*el-*-linux-gnuabi64) + targ_emul=elf64ltsmip + targ_extra_emuls="elf64btsmip elf32ltsmipn32 elf32btsmipn32 elf32ltsmip elf32btsmip" + targ_extra_libpath=$targ_extra_emuls + ;; mips64*el-*-linux-*) targ_emul=elf32ltsmipn32 targ_extra_emuls="elf32btsmipn32 elf32ltsmip elf32btsmip elf64ltsmip elf64btsmip" targ_extra_libpath=$targ_extra_emuls ;; +mips64*-*-linux-gnuabi64) + targ_emul=elf64btsmip + targ_extra_emuls="elf64ltsmip elf32btsmipn32 elf32ltsmipn32 elf32btsmip elf32ltsmip" + targ_extra_libpath=$targ_extra_emuls + ;; mips64*-*-linux-*) targ_emul=elf32btsmipn32 targ_extra_emuls="elf32ltsmipn32 elf32btsmip elf32ltsmip elf64btsmip elf64ltsmip" targ_extra_libpath=$targ_extra_emuls |